NOT KNOWN FACTS ABOUT AIRQUEEN NANO MASK

N95 producers usually offer instructions with the instructed length of use for his or her masks on the box or online. But usually, you should throw out your N95 if it gets broken — crumpled up within your bag, for example — or if you can not realize a decent seal to your face. It's also wise to switch your N95 if it will get soaked, dirty or co